Segment Results (Schedule Of Financial Information By Reportable Segment) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Document Period End Date			Jun. 30, 2019
Operating profit (loss) from continuing operations
Revenues	$ 841.6	$ 851.0	$ 1,673.3	$ 1,650.0
Operating profit (loss)	122.8	113.0	236.5	207.3
Interest income	0.7	0.4	1.3	1.2
Interest expense	(11.4)	(12.8)	(23.3)	(27.5)
Miscellaneous - net	6.4	4.3	8.4	8.3
Income before income taxes	118.5	104.9	222.9	189.3
Fluid Handling
Operating profit (loss) from continuing operations
Revenues	290.6	276.9	564.3	543.5
Operating profit (loss)	37.3	29.5	71.4	57.6
Payment & Merchandising Technologies
Operating profit (loss) from continuing operations
Revenues	291.0	324.3	594.8	616.7
Operating profit (loss)	46.5	46.1	89.7	82.6
Engineered Materials
Operating profit (loss) from continuing operations
Revenues	55.5	62.6	115.1	132.3
Operating profit (loss)	7.5	11.2	16.9	23.7
Aerospace & Electronics
Operating profit (loss) from continuing operations
Revenues	204.5	187.2	399.1	357.5
Operating profit (loss)	49.4	43.3	94.2	77.5
Corporate
Operating profit (loss) from continuing operations
Operating profit (loss)	(17.9)	(17.1)	(35.7)	(34.1)
Commercial Valves | Fluid Handling
Operating profit (loss) from continuing operations
Revenues	83.6	79.2	164.4	159.7
Other Products | Fluid Handling
Operating profit (loss) from continuing operations
Revenues	24.6	22.3	49.5	43.4
Payment Acceptance and Dispensing Products | Payment & Merchandising Technologies
Operating profit (loss) from continuing operations
Revenues	154.0	155.3	312.7	300.7
Banknotes and Security Products | Payment & Merchandising Technologies
Operating profit (loss) from continuing operations
Revenues	88.5	121.6	187.1	221.4
Merchandising Equipment | Payment & Merchandising Technologies
Operating profit (loss) from continuing operations
Revenues	48.5	47.4	95.0	94.6
Commercial Original Equipment | Aerospace & Electronics
Operating profit (loss) from continuing operations
Revenues	91.3	86.2	181.7	170.8
Military and Other Original Equipment | Aerospace & Electronics
Operating profit (loss) from continuing operations
Revenues	55.4	48.7	106.9	90.7
Commercial Aftermarket Products | Aerospace & Electronics
Operating profit (loss) from continuing operations
Revenues	41.4	37.5	79.6	70.2
Military Aftermarket Products | Aerospace & Electronics
Operating profit (loss) from continuing operations
Revenues	16.4	14.8	30.9	25.8
FRP - Recreational Vehicles | Engineered Materials
Operating profit (loss) from continuing operations
Revenues	22.2	31.2	48.7	68.5
FRP - Building Products | Engineered Materials
Operating profit (loss) from continuing operations
Revenues	24.0	23.4	47.7	47.2
FRP - Transportation | Engineered Materials
Operating profit (loss) from continuing operations
Revenues	9.3	8.0	18.7	16.6
Process Valves and Related Products | Fluid Handling
Operating profit (loss) from continuing operations
Revenues	$ 182.4	$ 175.4	$ 350.4	$ 340.4